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 $D011/53265/VIC+17:  Control Register 1

   +----------+---------------------------------------------------+
   | Bit  7   |    Raster Position Bit 8 from <A HREF="VIC18.HTM">$D012</A>               |
   | Bit  6   |    Extended Color Text Mode: 1 = Enable           |
   | Bit  5   |    Bitmap Mode: 1 = Enable                        |
   | Bit  4   |    Blank Screen to Border Color: 0 = Blank        |
   | Bit  3   |    Select 24/25 Row Text Display: 1 = 25 Rows     |
   | Bits 2-0 |    Smooth Scroll to Y Dot-Position (0-7)          |
   +----------+---------------------------------------------------+

   Default Value: $9B/155 (%10011011).

Kernal-Reference:

 LDA $D011   : <A HREF="ROMF875.HTM">$F88D</A> <A HREF="ROMFC93.HTM">$FC95</A>
 STA $D011   : <A HREF="ROMF875.HTM">$F892</A> <A HREF="ROMFC93.HTM">$FC9A</A>

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